EP1570592B1 - Systemes et procedes d'augmentation de la capacite et/ou de la qualite du service de systemes satellites et cellulaires terrestres au moyen de la reception terrestre de frequences de bandes satellites - Google Patents

Systemes et procedes d'augmentation de la capacite et/ou de la qualite du service de systemes satellites et cellulaires terrestres au moyen de la reception terrestre de frequences de bandes satellites Download PDF

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Publication number
EP1570592B1
EP1570592B1 EP03813335A EP03813335A EP1570592B1 EP 1570592 B1 EP1570592 B1 EP 1570592B1 EP 03813335 A EP03813335 A EP 03813335A EP 03813335 A EP03813335 A EP 03813335A EP 1570592 B1 EP1570592 B1 EP 1570592B1
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EP
European Patent Office
Prior art keywords
frequency band
terrestrial
communications
satellite
wireless terminals
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Revoked
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EP03813335A
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German (de)
English (en)
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EP1570592A1 (fr
Inventor
Peter D. Karabinis
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ATC Technologies LLC
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ATC Technologies LLC
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18563—Arrangements for interconnecting multiple systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system

Definitions

  • a wireless communications system is described in WO 02/11302 which uses satellite frequency bands for all communications between a terrestrial base station and mobile terminals.
  • Wireless terminals comprise a receiver that is configured to receive communications over forward link and return link portions of a terrestrial frequency band and a transmitter that is configured to transmit communications over a satellite frequency band.
  • the receiver is further configured to receive communications over a satellite frequency band
  • the transmitter is further configured to transmit communications over a terrestrial frequency band.
  • Figure 1 illustrates wireless communications systems and methods, such as cellular communications systems and methods, according to some embodiments of the present invention. It will be understood that in other embodiments, non-cellular terrestrial wireless and/or non-cellular satellite communications systems and methods may be used.
  • a terrestrial cellular transmitter 114 ' is used, rather than a terrestrial cellular receiver 114 of Figure 1.
  • the capacity of the terrestrial cellular forward link thereby may be approximately doubled over conventional terrestrial cellular systems and/or the quality of service may be increased. It will be understood that in other embodiments, non-cellular terrestrial wireless and/or non-cellular satellite communications systems and methods may be used.
  • This added forward link capacity of embodiments of Figure 2 may be particularly desirable for data communications.
  • approximately equal forward and return link capacities may generally be desired, to mirror the statistically symmetric nature of full duplex voice communications.
  • relatively few bits of information, such as a single mouse click or other indication from a user, that are transmitted from a wireless terminal 130 may generate a large volume of data, including graphical and/or multimedia data to be downloaded to the wireless terminal 130. Accordingly, the approximately doubled capacity and/or quality of service of the terrestrial forward link may be particularly desirable for data communications.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transceivers (AREA)

Claims (31)

  1. Système de communication sans fil (300) comprenant:
    un satellite (150) qui est configuré pour émettre des communications sur des terminaux sans fil (130) sur une bande de fréquences de satellite (162) et pour recevoir des communications depuis les terminaux sans fil sur une bande de fréquences de satellite (164); et
    une station de base terrestre (110) qui est configurée pour émettre des communications sur les terminaux sans fil (130) sur une première bande qui est une bande de fréquences terrestre (122) et pour recevoir des communications depuis les terminaux sans fil (130) sur une seconde bande qui est une bande de fréquences de satellite (126).
  2. Système de communication sans fil (300) selon la revendication 1, dans lequel la station de base terrestre (110) est en outre configurée pour recevoir des communications depuis les terminaux sans fil (130) sur une bande de fréquences terrestre (124).
  3. Système de communication sans fil (300) selon la revendication 1, dans lequel la station de base terrestre (110) est en outre configurée pour émettre des communications sur les terminaux sans fil (130) sur des parties de liaison en sens direct (122) et de liaison de retour (124') de la bande de fréquences terrestre.
  4. Système de communication sans fil (300) selon la revendication 1, dans lequel la station de base terrestre (110) est configurée pour émettre des communications sur les terminaux sans fil (130) sur la bande de fréquences terrestre (122) et pour recevoir des communications depuis les terminaux sans fil sur la bande de fréquences de satellite (126) dans un premier mode de fonctionnement et est configurée pour émettre des communications sur les terminaux sans fil (130) sur la bande de fréquences terrestre (122) et pour recevoir des communications depuis les terminaux sans fil (130) sur la bande de fréquences terrestre (124) dans un second mode de fonctionnement.
  5. Système de communication sans fil (300) selon la revendication 4, dans lequel la station de base terrestre (110) est en outre configurée pour recevoir des communications depuis les terminaux sans fil (130) sur la bande de fréquences terrestre (124) dans le premier mode de fonctionnement.
  6. Système de communication sans fil (300) selon la revendication 4, dans lequel la station de base terrestre (110) est en outre configurée pour émettre des communications sur les terminaux sans fil (130) sur des parties de liaison en sens direct (122) et de liaison de retour (124') de la bande de fréquences terrestre dans le premier mode de fonctionnement.
  7. Système de communication sans fil (300) selon la revendication 1 en combinaison avec les terminaux sans fil (130).
  8. Système de communication sans fil (300) selon la revendication 1, dans lequel la bande de fréquences de satellite est une bande de fréquences de satellite cellulaire et/ou dans lequel la bande de fréquences terrestre est une bande de fréquences cellulaire terrestre.
  9. Station de base terrestre (110) pour un système de communication sans fil comprenant:
    un émetteur (112) qui est configuré pour émettre des communications sur des terminaux sans fil (130) sur une bande de fréquences terrestre (122); et
    un récepteur (116) qui est configuré pour recevoir des communications depuis les terminaux sans fil (130) sur une bande de fréquences de satellite (126).
  10. Station de base terrestre (110) selon la revendication 9, dans laquelle l'émetteur (112, 114') est configuré pour émettre des communications sur les terminaux sans fil (130) sur des parties de liaison en sens direct (122) et de liaison de retour (124') de la bande de fréquences terrestre (124).
  11. Station de base terrestre (110) selon la revendication 9, dans laquelle le récepteur (140) est en outre configuré pour recevoir des communications depuis les terminaux sans fil (130) sur une bande de fréquences terrestre (124).
  12. Station de base terrestre (110) selon la revendication 9, dans laquelle l'émetteur (112) est configuré pour émettre des communications sur les terminaux sans fil (130) sur la bande de fréquences terrestre (122) et le récepteur (116) est configuré pour recevoir des communications depuis les terminaux sans fil (130) sur la bande de fréquences de satellite (126) dans un premier mode de fonctionnement et dans laquelle l'émetteur (112) est configuré pour émettre des communications sur les terminaux sans fil (130) sur la bande de fréquences terrestre (122) et le récepteur (114) est configuré pour recevoir des communications depuis les terminaux sans fil (130) sur la bande de fréquences terrestre (124) dans un second mode de fonctionnement.
  13. Station de base terrestre (110) selon la revendication 12, dans laquelle l'émetteur (112, 114') est en outre configuré pour émettre des communications sur les terminaux sans fil (130) sur des parties de liaison en sens direct (122) et de liaison de retour (124') de la bande de fréquences terrestre dans le premier mode de fonctionnement.
  14. Station de base terrestre (110) selon la revendication 12, dans laquelle le récepteur (114) est en outre configuré pour recevoir des communications depuis les terminaux sans fil (130) sur la bande de fréquences terrestre (124) dans le premier mode de fonctionnement.
  15. Station de base terrestre (110) selon la revendication 9 en combinaison avec les terminaux sans fil (130).
  16. Station de base terrestre (110) selon la revendication 9, dans laquelle la bande de fréquences de satellite est une bande de fréquences de satellite cellulaire et/ou dans laquelle la bande de fréquences terrestre est une bande de fréquences cellulaire terrestre.
  17. Station de base terrestre (110) selon la revendication 9, dans laquelle la station de base (110) est exempte d'un émetteur qui est configuré pour émettre des communications sur les terminaux sans fil (130) sur une bande de fréquences de satellite.
  18. Station de base terrestre (110) selon la revendication 17, dans laquelle le récepteur (114) est en outre configuré pour recevoir des communications depuis les terminaux sans fil (130) sur une bande de fréquences terrestre (154).
  19. Station de base terrestre (110) selon la revendication 17 en combinaison avec les terminaux sans fil (130).
  20. Station de base terrestre (110) selon la revendication 17, dans laquelle la bande de fréquences de satellite est une bande de fréquences de satellite cellulaire et/ou dans laquelle la bande de fréquences terrestre est une bande de fréquences cellulaire terrestre.
  21. Terminal sans fil (130) comprenant:
    un récepteur qui est configuré pour recevoir des communications sur des parties de liaison en sens direct (122) et de liaison de retour (124') d'une bande de fréquences terrestre; et
    un émetteur qui est configuré pour émettre des communications sur une bande de fréquences de satellite (126, 164).
  22. Terminal sans fil (130) selon la revendication 21, dans lequel:
    le récepteur est en outre configuré pour recevoir des communications sur une bande de fréquences de satellite (162); et
    l'émetteur est en outre configuré pour émettre des communications sur une bande de fréquences terrestre (124).
  23. Terminal sans fil (130) selon la revendication 21, dans lequel le récepteur est configuré pour recevoir des communications sur des parties de liaison en sens direct (122) et de liaison de retour (124') de la bande de fréquences terrestre et l'émetteur est configuré pour émettre des communications sur la bande de fréquences de satellite (126, 164) dans un premier mode de fonctionnement et dans lequel le récepteur est configuré pour recevoir des communications sur une bande de fréquences de satellite (162) et l'émetteur est configuré pour émettre des communications (164, 126) sur la bande de fréquences de satellite dans un second mode de fonctionnement.
  24. Terminal sans fil (130) selon la revendication 23, dans lequel le récepteur est configuré pour recevoir des communications sur une bande de fréquences terrestre (122) et l'émetteur est configuré pour émettre des communications sur la bande de fréquences terrestre (124) dans un troisième mode de fonctionnement.
  25. Terminal sans fil (130) selon la revendication 22, dans lequel la bande de fréquences de satellite est une bande de fréquences de satellite cellulaire et/ou dans lequel la bande de fréquences terrestre est une bande de fréquences cellulaire terrestre.
  26. Procédé pour étendre la capacité d'un système de communication sans fil terrestre (100) qui utilise une bande de fréquences terrestre pour des communications avec des terminaux sans fil (130), le procédé comprenant:
    l'utilisation d'une bande de fréquences de satellite (126) pour recevoir de façon terrestre des communications depuis les terminaux sans fil (130).
  27. Procédé selon la revendication 26, dans lequel l'utilisation comprend:
    l'utilisation de la bande de fréquences de satellite (126) pour recevoir de façon terrestre des communications depuis les terminaux sans fil (130) sans utiliser la bande de fréquences de satellite pour émettre de façon terrestre des communications sur les terminaux sans fil (130).
  28. Procédé selon la revendication 26, comprenant en outre l'utilisation de parties de liaison en sens direct (122) et de liaison de retour (124') d'une bande de fréquences terrestre pour émettre de façon terrestre des communications sur les terminaux sans fil (130).
  29. Procédé selon la revendication 26, dans lequel la bande de fréquences de satellite est une bande de fréquences de satellite cellulaire et/ou dans lequel la bande de fréquences terrestre est une bande de fréquences cellulaire terrestre.
  30. Procédé selon la revendication 26, comprenant en outre l'utilisation d'une bande de fréquences de satellite (126) pour recevoir de façon terrestre des communications depuis les terminaux sans fil (130).
  31. Procédé selon la revendication 28, dans lequel la bande de fréquences de satellite est une bande de fréquences de satellite cellulaire et/ou dans lequel la bande de fréquences terrestre est une bande de fréquences cellulaire terrestre.
EP03813335A 2002-12-12 2003-08-15 Systemes et procedes d'augmentation de la capacite et/ou de la qualite du service de systemes satellites et cellulaires terrestres au moyen de la reception terrestre de frequences de bandes satellites Revoked EP1570592B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US317320 2002-12-12
US10/317,320 US7092708B2 (en) 2002-12-12 2002-12-12 Systems and methods for increasing capacity and/or quality of service of terrestrial cellular and satellite systems using terrestrial reception of satellite band frequencies
PCT/US2003/025771 WO2004056014A1 (fr) 2002-12-12 2003-08-15 Systemes et procedes d'augmentation de la capacite et/ou de la qualite du service de systemes satellites et cellulaires terrestres au moyen de la reception terrestre de frequences de bandes satellites

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EP1570592A1 EP1570592A1 (fr) 2005-09-07
EP1570592B1 true EP1570592B1 (fr) 2008-01-23

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EP03813335A Revoked EP1570592B1 (fr) 2002-12-12 2003-08-15 Systemes et procedes d'augmentation de la capacite et/ou de la qualite du service de systemes satellites et cellulaires terrestres au moyen de la reception terrestre de frequences de bandes satellites

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US (2) US7092708B2 (fr)
EP (1) EP1570592B1 (fr)
AT (1) ATE385084T1 (fr)
AU (1) AU2003259889B2 (fr)
CA (1) CA2504248A1 (fr)
DE (1) DE60318892T2 (fr)
DK (1) DK1570592T3 (fr)
ES (1) ES2300660T3 (fr)
MX (1) MXPA05006206A (fr)
WO (1) WO2004056014A1 (fr)

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US7092708B2 (en) 2006-08-15
WO2004056014A1 (fr) 2004-07-01
DE60318892D1 (de) 2008-03-13
ES2300660T3 (es) 2008-06-16
EP1570592A1 (fr) 2005-09-07
AU2003259889A1 (en) 2004-07-09
ATE385084T1 (de) 2008-02-15
US20040203742A1 (en) 2004-10-14
DE60318892T2 (de) 2009-01-08
AU2003259889B2 (en) 2008-10-09
US20060211452A1 (en) 2006-09-21
CA2504248A1 (fr) 2004-07-01
DK1570592T3 (da) 2008-06-02

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